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Didier B. Dutheil

@didierdutheil.bsky.social

82 followers 77 following 93 posts

Curieux de nature • les pieds sur Terre • paléontologue pratiquant • paleontologist • Niger Heritage • Limouzi • Chabatz d'entrar • scicom • paléontologie

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Didier B. Dutheil @didierdutheil.bsky.social · Mar 6

⚠️ Thrilled to share our new paper on: First occurrence of Distobatus Werner, 1989 (Elasmobranchii: Hybodontiformes) in the middle Cretaceous of Brazil
👉 P Brito, I Veiga, @didierdutheil.bsky.social , L Bergqvist
📰 Cretaceous Research
➡️ doi.org/10.1016/j.cr...
#NewSpeciesAlert #paleontology #shark

Tooth of Distobatus potiguarense nov. sp. from the Albian-Cenomanian Açu Formation of the Potiguar Basin in northeastern Brazil.

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Didier B. Dutheil @didierdutheil.bsky.social · 17h

Cranial modularity drives phenotypic diversification and adaptive radiation of Antarctic icefishes by
@mayaranevesbio.bsky.social et al. in @pnas.org

➡️ www.pnas.org/doi/10.1073/...

Cranial modularity drives phenotypic diversification and adaptive radiation of Antarctic icefishes | PNAS

Modularity among traits is thought to drive morphological evolution and diversification, with more modular species often showing greater morphologi...

www.pnas.org

Didier B. Dutheil @didierdutheil.bsky.social · 3d

News on Polypterid by Tomáš Suchánek, Ann Huysseune, Robert Cerny in @journalofanatomy.bsky.social

➡️ doi.org/10.1111/joa....

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

Pectoral fins of bichirs encompass the so-called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth.

doi.org

Reposted by Didier B. Dutheil

Journal of Anatomy @journalofanatomy.bsky.social · 19d

The hidden pattern of the primary teeth in an ancestral ray-finned fish provides a clue to how the strange lungfish dentition could have evolved simply by modifying the growth mode of bone. More information in this newly published piece from @uuvertpalaeo.bsky.social here: doi.org/10.1111/joa....

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Reposted by Didier B. Dutheil

Jeanne Timmons @mostlymammoths.bsky.social · 16d

Bumble bees pollinated linden flowers 24 million years ago 🌸🐝
#paleobotany #palaeobotany @univie.ac.at

www.univie.ac.at/en/news/pres...

Picture of a fossilized linden flower: Tilia magnasepala. Photo: Christian Geier

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Didier B. Dutheil @didierdutheil.bsky.social · 8d

Mon nom est dérivé du mot 🌳 tilleul alors lorsque du pollen et des fleurs de tilleul (Tilia), d'environ 25 Ma, sont trouvés en association avec des 🐝 bourdons (Bombus), cela me plaît au plus au point.
Christian Geier et al. / @newphyt.bsky.social

➡️ nph.onlinelibrary.wiley.com/doi/10.1111/...

24 million years of pollination interaction between European linden flowers and bumble bees

Pollination is the most common insect–plant mutualism, binding them in a co-evolutionary framework. Historic evidence of this interaction can be partly inferred from time-calibrated molecular phylog.....

doi.org

Reposted by Didier B. Dutheil

Alessandro Chiarenza @macroecoevoale.bsky.social · 12d

What are the biggest questions in #paleontology? New paper out today in Paleobiology led by Smith & Kiessling with ~200 coauthors on the relevance of our field, methods, & museum collections to climate & biodiversity research🦖 #FossilFriday @paleosoc.bsky.social 🔗: www.cambridge.org/core/journal...

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Reposted by Didier B. Dutheil

Richard Dearden @euphanerops.bsky.social · 13d

Living sharks have innumerable tiny scales, but their earliest relatives somehow grew larger bony plates. In our new Biology Letters @royalsocietypublishing.org, we work try and out how, arguing they grew by fusing and remodelling spines and scales.

doi.org/10.1098/rsbl...

Reconstruction of an early shark relative, a fish with a blunt head and with fins supported by spines. Image by Plamen Andreev.

Images of growth of the bony plate of an early shark relative.

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Reposted by Didier B. Dutheil

Nature @nature.com · 21d

Nature research paper: A domed pachycephalosaur from the early Cretaceous of Mongolia

go.nature.com/3ItcRdg

A domed pachycephalosaur from the early Cretaceous of Mongolia - Nature

The pachycephalosaurian Zavacephale rinpoche, from the Early Cretaceous of Mongolia, provides crucial insights into the early evolution of dome-headed dinosaurs, including the development of the frontoparietal dome and decoupling of sociosexual and somatic maturity.

go.nature.com

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Didier B. Dutheil @didierdutheil.bsky.social · 22d

Very nice job Filippo...

Filippo Bertozzo, PhD @fbertpaleo.bsky.social · 23d

Today new publication has been released in @journalsystpal.bsky.social
We are proud to present you Cariocecus bocagei, a new hadrosauroid from the Papo Seco Formation (Barremian, Early K) of Portugal.
Come with me in this post series to learn more about it! 1/x

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Didier B. Dutheil @didierdutheil.bsky.social · 22d

Great work by ‪@tylerkeillor.bsky.social‬ on a Tiktaalik sculpture.

Tyler Keillor @tylerkeillor.bsky.social · 23d

In support of Science, Art, Kindness to counter my sense of malaise over the state of the world these past years, Bluesky seemed a good change: here’s a timelapse of me basecoat painting my Tiktaalik sculpture recently for a new display in Singapore!

Didier B. Dutheil @didierdutheil.bsky.social · 25d

Les défis de la paléontologie au Niger.

➡️ www.aljazeera.com/features/202...

Dinosaurs to supercrocs: Niger’s bone keepers preserve its ancient fossils

The Sahel country is one of the few African nations to boast rare dinosaurs, but safeguarding them is a challenge.

www.aljazeera.com

Reposted by Didier B. Dutheil

Nature @nature.com · 29d

The academic community has looked at how artificial-intelligence tools help researchers to write papers, but not how they distort the literature scientists choose to cite, says Zhicheng Lin

go.nature.com/45X3Imr

AI chatbots are already biasing research — we must establish guidelines for their use now

The academic community has looked at how artificial-intelligence tools help researchers to write papers, but not how they distort the literature scientists choose to cite.

go.nature.com

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Reposted by Didier B. Dutheil

Nature @nature.com · Sep 8

In this podcast mini-series 🔊 we explore why scientific misconduct happens and how to tackle it.

go.nature.com/47u7Zig

Research misconduct: how the scientific community is fighting back

Hear the biggest stories from the world of science | 08 September 2025

go.nature.com

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 30

J'aime beaucoup l'illustration de cet article dans @jeuneafrique.com

Jeune Afrique @jeuneafrique.com · Aug 29

« Étrange », « bizarre » : le dinosaure Spicomellus, découvert au Maroc, met les scientifiques en émoi

l.jeuneafrique.com

Reposted by Didier B. Dutheil

Nature @nature.com · Aug 29

Researchers have identified more than 1,000 potentially problematic open-access journals using an AI tool

go.nature.com/47TuL37

Hundreds of suspicious journals flagged by AI screening tool

System that searches for signs of bad practice could help to weed out questionable titles.

go.nature.com

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 27

On savait déjà que le dinosaure ankylosaure 🇲🇦 marocain, Spicomellus afer était doté d'épines puissantes, mais les dernières découvertes sont au-dessus de ce que l'on pouvait imaginer.
via @Nature @tweetisaurus.bsky.social

➡️ www.nature.com/articles/s41...

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 22

Un biais supplémentaire mis au jour dans l'arbitrage des articles soumis à publication. " Les évaluateurs sont plus susceptibles d'approuver les articles qui citent leur propre travail ".
Auteur: ‪@aidybarnett.bsky.social
➡️ osf.io/preprints/os...

Reposted by Didier B. Dutheil

Science Magazine @science.org · Aug 22

Researchers have filmed thousands of climbing catfish scaling waterfalls, providing a rare insight into the daring migration of an enigmatic fish.

Learn more: https://scim.ag/4lDlFux

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 20

Lorsque l'Afrique perd sa mémoire, ça m'énerve gravement...

➡️ www.lemonde.fr/afrique/arti...

Fétiche star des surréalistes, le « boli » de Diabougou n’est plus le bienvenu dans son village malien

« Patrimoine africain : le temps du retour » (4/5). Dérobé en 1931 par la mission Dakar-Djibouti, cet objet rituel conservé au Musée du quai Branly pourrait faire son retour, un jour, au Mali. Mais pa...

www.lemonde.fr

Reposted by Didier B. Dutheil

Reporterre 🌍 | Le média de l'écologie @reporterre.net · Aug 18

Depuis fin juillet, le Muséum national d’histoire naturelle de Paris est paralysé par une cyberattaque d’une ampleur inédite, qui bloque l’accès à ses bases de données scientifiques et à ses outils numériques.

Lire l'article ➡️ https://l.reporterre.net/SPn

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 15

Très importante étude d'un ostéostracé, Norselaspis glacialis, mis en lumière grâce à des techniques de micro-tomographie X-ray du Synchrotron Soleil.
Article avec entre autres comme co-auteur, Philippe Janvier @cr2p.bsky.social @recherche.mnhn.fr @mnhn.fr et @pgueriau.bsky.social

Nature @nature.com · Aug 13

Nature research paper: Novel assembly of a head–trunk interface in the sister group of jawed vertebrates

go.nature.com/47lrjxX

Novel assembly of a head–trunk interface in the sister group of jawed vertebrates - Nature

Imaging of a Devonian jawless fish reveals advanced features previously thought to be exclusive to jawed vertebrates, challenging the idea that jaws were the primary driver for the evolution of derived traits in the vertebrate body plan.

go.nature.com

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 14

Quelle BELLE et imaginative illustration du ptérosaure (Guidraco venator Wang et al. 2012) du Crétacé inférieur du Liaoning en Chine exécuté par @dragonsofwales.bsky.social

Dragons of Wales @dragonsofwales.bsky.social · Aug 14

Guidraco venator - a presumably piscivorous pterosaur.
A new illustration that I’ve just finished. Too late to show at DinoCon this weekend… for which I now need to pack! #SciArt

A digital portrait of Guidraco - an extinct flying reptile, with long snout with ridiculously long, curving teeth protruding from the tip. Atop its head is a curved crest. It is shown in a mixture of bright pink and orange tones, with a covering of black and white filaments on the next and body.

Reposted by Didier B. Dutheil

Yvan Guichaoua @yguichaoua.bsky.social · Aug 11

After regaining their national sovereignty following the coup, Niger authorities now claim sovereignty over a piece of Mars (more seriously: they have every reason to be angry)

Martian meteorite: Niger's anger that a piece of Mars ended up for auction

The West African country investigates how a space rock found there was put up for sale in New York.

www.bbc.com

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Reposted by Didier B. Dutheil

Dr Alice Clement @draliceclement.bsky.social · Aug 11

Want to do a PhD on White Sharks using high-powered imaging to analyse form and function of their teeth and jaws?

You will work with me and the dream team @charlie-huveneers.bsky.social @meyer-sci.bsky.social @weisbeckerbblab.bsky.social & #SARDI at Flinders Uni

🦈🦷🦴 Interested? Get in touch!

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Didier B. Dutheil @didierdutheil.bsky.social · Aug 7

“ Exclusive : éditeurs sujets à la rétraction identifiés au megajournal PLoS ONE " | @nature.com
➡️ www.nature.com/articles/d41...

Exclusive: retraction-prone editors identified at megajournal PLoS ONE

Study says small editor group handled many problematic manuscripts — and a Nature investigation finds out who they are.